Process for the production of flour from grain



API 22, 1941- T, J. KLIN'TI I 2,239,563

PROCESS FOR THE PRODUCTION OF FLOUR FROM GRKIN Filed June. 11, 1938 Shae sing #18 Grain I 5ubdiuid/fi3 'Sf'eeped Grain Pulp/n ubdfu i obed Sfeeped Grain,

Spray dry ing flour 4 01y bran.-

them to a paste or pulp Patented Apr. 22, 1941 OFFICE,

2,239,563 PROCESS FOR- THE PRODUCTION OF FLOUR. FROM GRAIN Tage Jensen Klint, Munke Molle, Odense,

Denmark Application June 11, 1938, Serial No.

In Great Britain June 16, 1937 2 Claims. (Cl. 83-42) The present invention relates to an improved method of producing flour from various kinds of grain. The hitherto employed method consists in grinding the grain and subsequently sifting the resulting product for the-separation of the fine fiour, comprising gluten and starch, from the husk portio By this method it is not possible to remove completely from the husk the layer .ofendosperm containing the main portion of vitamines and salts, the fine flour being short of these substances.

The main objects of the present invention are:

(1) To provide an increased 'yield of flour,

(2) To'transier to the flour the main portion of B-vitamines and salts contained in the grain, and u (3) To improve the baking properties of the with these objects in view the invention con-. sists essentially in steeping the whole grain, or a coarse powder of them, and thereupon working in such a manner that the husk portions are not reduced to the same fineness as thestarch and gluten particles, which paste or pulp is spray dried in a hot air current to a powder containing. flakes or coarse particles 01' the husk portions which are removed from the powder. by sitting. V

- The steeping or the grain is eflectedaiter it has been cleansed in known manner, but without any other previom treatment.

The objects of the invention may alternatively is rich in vitamines, is thereupon mixed with fiour produced either in any hitherto known man'- ner or produced in accordance with the present invention. It is thus possible to produce a flour with a greater proportion of vitamines than is normally obtained. I

In order to obtain a uniform powder, and accordingly a finer flour product, it is advisable, prior to the spray drying process, to give the paste or pulp produced by the aforesaid method a more'homogeneous character by any known means, for instance by forcing it through narrow.

its. .i 1 The accompanying drawing diagrammatically illustrates the process.

I declare that what I claim is: a

1. In a process for the steps ture too low to cook the same, finely subdividing the steeped grain and more coarsely subdividing the husk portions thereof than the other portions, working said coarsely subdivided husk portions and said finely subdivided other portions into a' pulp suificiently liquid to be spray-dried, spray drying this pulp, and sifting the fiour from the husk particles. 1

-2. A method of treating the endosperm-c'arrying husk portion of grain sifted from the flour aiter grinding, comprising the steps of steeping said endosperm-carrying husk portion and maintaining it below a cooking temperature during be attainedby maceratingmerely the husk-confiour. obtained by usual manner. The paste is treated in the manner fiour thus produced which taining part sifted oil from grinding or pulp thus obtained described above. The

said steeping, forming a pulp from said steeped endosperm-carrying husk portion sufiiciently liqaid to bespray-dried, spray dryingsaid pulp and sitting the flour from the relatively coarse husk' particles.

TAGE JENSEN KIJNT.

producing flour from grain, V of first steeping the grain at a tempera- 

